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Defense Technical Information Archive
May 18, 2019 Defense Technical Information Center
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The performance capability associated with resolving and incoherently combining multipath arrivals is investigated, as a function of the signaling bandwidth, for a generic communications system. The performance measure used is a deflection criterion of receiver output signal-to-noise ratio. It is shown that resolution and incoherent combination is a form of diversity which yields a measure of safety, in that drastic losses in performance become far less likely. The exact behavior of the...
Topics: DTIC Archive, Nuttall, Albert H, OREGON STATE UNIV CORVALLIS DEPT OF MATHEMATICS, *INFORMATION...
Defense Technical Information Archive
May 18, 2019 Defense Technical Information Center
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The report describes a method for evaluation of materiel physical characteristics. It discusses preliminary activities, facilities, and equipment required. It provides procedures for wheeled, tracked, and special purpose vehicles; armament and individual weapons; ammunition and explosives; missile and rocket systems, electronic, avionic, and communications equipment; aviation, air delivery equipment, and aircraft weapons subsystems; chemical and radiological equipment; construction, support,...
Topics: DTIC Archive, Trede, Ardo C, ARMY TEST AND EVALUATION COMMAND ABERDEEN PROVING GROUND MD, *ARMY...
Defense Technical Information Archive
May 18, 2019 Defense Technical Information Center
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The report describes a method for evaluation of grenade operational and functional performance characteristics. It identifies supporting tests, facilities, and equipment required. Provides procedures for preoperational inspection, physical characteristics, safety personnel training, and functional suitability. It is applicable to high explosive, antitank (heat), fragmentation, offensive, white phosphorous, incendiary, riot control, practice, and inert hand or weapon launched grenades.
Topics: DTIC Archive, Lavendar, Paul W, ARMY TEST AND EVALUATION COMMAND ABERDEEN PROVING GROUND MD,...
Defense Technical Information Archive
May 18, 2019 Defense Technical Information Center
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One factor which has hindered the development of an effective low- speed flight control capability for helicopters and other V/STOL aircraft is the lack of an accurate airspeed sensor which will operate at speeds below 40 knots. One device which does meet this requirement is an advanced electronic true airspeed sensor developed by J-Tec Associates of Cedar Rapids, Iowa. Under the USAF Flight Dynamics Laboratory's Advanced Development Program 643A, 'Tactical Airlift Technology,' a J-Tec...
Topics: DTIC Archive, McElreath, K W, AIR FORCE FLIGHT DYNAMICS LAB WRIGHT-PATTERSON AFB OH, *HELICOPTERS,...
Defense Technical Information Archive
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The report, Volume 3 of the MAGIC 3 system is the programmers' manual designed to facilitate implementation, operation, modification, and extension of the MAGIC 3 system. The MAGIC 3 system is written in FORTRAN 4 and has been implemented on IBM 360/65 and CDC 6400 computers. It includes 477 subroutines.
Topics: DTIC Archive, Gallo, A M, BELL AEROSPACE CO BUFFALO NY, *COMPUTER PROGRAMMING, *STRUCTURAL...
Defense Technical Information Archive
May 18, 2019 Defense Technical Information Center
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The report documents a significant new optical system analysis tool, the General Unwanted Energy Rejection Analysis Program (GUERAP). This CDC 6600 FORTRAN computer code is able to efficiently and accurately measure the off-axis rejection characteristics of a given optical system or baffle. It is applicable to a wide spectrum of systems, such as radiometers, star trackers and sensors, optical system baffles, optical test chambers, spacecraft sun and Earth shields, etc. In addition to being a...
Topics: DTIC Archive, Chou, Tien S, HONEYWELL INC ST PETERSBURG FL AEROSPACE DIV, *COMPUTER PROGRAMMING,...
Defense Technical Information Archive
May 18, 2019 Defense Technical Information Center
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The report presents a conceptual design for a computer graphics program capable of displaying arbitrary data bases. The program was motivated by a need to provide new dimensions in information presentation to researchers studying the dynamics of climate. There is a specific need for the application of advanced graphical display techniques to climatological studies. The main purpose of the report, however, is to serve as a guideline in implementing the program on a PDP-10 computer. Thus the...
Topics: DTIC Archive, Harslem, E F, RAND CORP SANTA MONICA CA, *CLIMATE, *COMPUTER PROGRAMMING, DISPLAY...
Defense Technical Information Archive
May 17, 2019 Defense Technical Information Center
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The report describes a method for evaluation of ammunition and explosives functional performance characteristics. Discusses preparation for test, facilities, and equipment required. Provides procedures for initial inspection, initial performance, tropic storage, transportation, handling, emplacement, functional performance, maintainability, and safety. Identifies data required and specified analysis methods. Applicable to artillery and small arms ammunition, ammunition components, demolition...
Topics: DTIC Archive, ARMY TEST AND EVALUATION COMMAND ABERDEEN PROVING GROUND MD, *SMALL ARMS AMMUNITION,...
Defense Technical Information Archive
May 17, 2019 Defense Technical Information Center
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Despite the advent of many exotic sensors for detecting targets at night, a significant portion of airborne tactical activity is carried out via direct vision, usually involving some type of artificial illumination, with air- dropped parachute flares. The use of flares constitutes one of the most difficult visual requirements for aircraft crew members attempting to detect targets at night. Efforts by the Aerospace Medical Research Laboratory, Wright- Patterson Air Force Base, Ohio, have...
Topics: DTIC Archive, Hilgendorf, Robert L, AIR FORCE AEROSPACE MEDICAL RESEARCH LAB WRIGHT-PATTERSON AFB...
Defense Technical Information Archive
May 17, 2019 Defense Technical Information Center
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The report describes a method for evaluation of individual decontamination and impregnation kit operational and functional performance characteristics. Identifies supporting tests, facilities, and equipment required. Provides procedures for operational suitability tests. Applicable to chemical agents. Excludes test against toxic agents.
Topics: DTIC Archive, ARMY INFANTRY BOARD FORT BENNING GA, *CHEMICAL WARFARE AGENTS, MILITARY REQUIREMENTS,...
Defense Technical Information Archive
May 17, 2019 Defense Technical Information Center
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The document describes a method for evaluation of infantry equipment physical and operational characteristics relative to position disclosing effects. Discusses preliminary activities, facilities, and equipment required. Provides procedures for audio and visual position disclosing effects, silhouette, radiation, tactical vulnerability, and safety. Applicable to infantry weapons, munitions, equipment, and accouterments.
Topics: DTIC Archive, ARMY TEST AND EVALUATION COMMAND ABERDEEN PROVING GROUND MD, *TEST METHODS, *ARMY...
Defense Technical Information Archive
May 17, 2019 Defense Technical Information Center
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The present program concerns the synthesis of compound semiconducting materials, with particular emphasis on their use in new and novel microwave devices. The program is divided into three major sections: thin film epitaxial growth of III-V compounds; the design, fabrication and evaluation of microwave devices and fundamental studies of crystal synthesis and properties. The devices of primary interest are of the planar microwave and acoustical type, employing thin films of GaAs as the active...
Topics: DTIC Archive, Stevenson, D A, STANFORD UNIV CA CENTER FOR MATERIALS RESEARCH, *GALLIUM ARSENIDES,...
Defense Technical Information Archive
May 17, 2019 Defense Technical Information Center
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A new method of nonlinear modulation of analog information is described which gives a substantial improvement in performance over conventional modulation techniques, such as PCM. The modulation technique which the author has called Multistream Modulation (MSMO) provides the capability of designing modulation performance characteristics which can be tailored to specific needs. The theoretical concepts presented were verified by measurements made on a digital transceiver breadboard constructed...
Topics: DTIC Archive, Gish, Herbert, SIGNATRON INC LEXINGTON MA, *INFORMATION THEORY, *VOICE...
Defense Technical Information Archive
May 17, 2019 Defense Technical Information Center
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This report discusses a research effort whose object is the design of a handprint alpha-numeric reader capable of human recognition rates. The effort included: Collection of a large data base of unconstrained handprinted alpha-numeric characters; Editing the data to re- label mislabeled characters, remove noise, and delete totally illegible characters. A separate programming package (the Data Base Editing Package) was designed and implemented for this purpose; The design of new features to...
Topics: DTIC Archive, Sammon, John W, PATTERN ANALYSIS AND RECOGNITION CORP ROME NY, *READING MACHINES,...
Defense Technical Information Archive
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Samples of the solid fluorocarbons CF and C4F have been prepared by direct fluorination of pure graphite. Low temperature heat capacity measurements have been made on both of these samples using a hydrogen cryostat calorimeter. For the compound CF(1.09, c(p) has been measured over the temperature range 5-310 K. Values of S and G have been calculated over this range of temperature also. It was possible to calculate the theoretical E for an electrochemical cell using the overall reaction...
Topics: DTIC Archive, Wood, James L, RICE UNIV HOUSTON TX, *ELECTROCHEMISTRY, *GRAPHITE, *FLUORINATION,...
Defense Technical Information Archive
May 17, 2019 Defense Technical Information Center
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An exploratory program was conducted for the Army to evaluate the possibility of adapting some particular explosive drilling techniques to the problem of producing emplacements for atomic demolition munitions (ADM). The approach consisted of introducing small encapsulated explosive charges into the bore hole which exploded and fragmented the rock at the bottom of the hole into particles that can be removed by any one of several spoils removal methods. Discussions are included of the design,...
Topics: DTIC Archive, Black, Walter L, AAI CORP COCKEYSVILLE MD, *EXPLOSIVE CHARGES, *ROCK, REMOVAL,...
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The authors describe transport measurements on the magnetic semiconductor Gd(3-x)v(x)S4. Some of the ideas relating to electrons localized by coulombic disorder to include potential fluctuations of magnetic origin are discussed. Also discussed are the effects on magnetic exchange of conduction electrons donated by non magnetic La(+++) ions to the Van Vleck ion Sm(++) in SmS. In spite of the fact that Sm(++) has a non magnetic ground state it has a sizeable susceptibility since its magnetic...
Topics: DTIC Archive, Hotzberg, F, IBM THOMAS J WATSON RESEARCH CENTER YORKTOWN HEIGHTS NY, *GADOLINIUM...
Defense Technical Information Archive
May 17, 2019 Defense Technical Information Center
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F30602-71-C-0148RADCTR-72-326(*electronic relays, nondestructive testing), reliability(electronics), accelerated testing, test equipment, life expectancy, regression analysis, mathematical modelsThe objectives of this study were to determine if a relationship exists between relay intermodulation products and constriction resistence, on the one hand, and relay life, on the other and to quantify the relationship if it exists. It turns out that both I.M. products and constriction resistance are...
Topics: DTIC Archive, Schafer, R E, HUGHES AIRCRAFT CO FULLERTON CA SYSTEMS EFFECTIVENESS DEPT, *ELECTRONIC...
Defense Technical Information Archive
May 17, 2019 Defense Technical Information Center
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The activities of the Psychometrics Department of TRACOR, Inc., fall into two major categories. In the first category are research activities undertaken with the aim of developing improved methods for evaluating voice communication systems and devices. In the second category are testing services performed with processed speech materials supplied by the contract monitor. The research activities included five major research projects from which technical papers resulted presented in the report.
Topics: DTIC Archive, Voiers, William D, TRACOR INC AUSTIN TX, *INTELLIGIBILITY, *SPEECH, *VOICE...
Defense Technical Information Archive
May 17, 2019 Defense Technical Information Center
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The report gives methods for designing reactively loaded N-port scatterers to have desired scattering pattern characteristics. A method for obtaining a least-squares approximation to a desired magnitude radiation pattern, with the restriction that port currents are real, is developed. A procedure for obtaining maximum gain, with the restriction that the port currents are real, is also described. Conducting bodies can be reactively loaded to make any real port current the dominant port mode of...
Topics: DTIC Archive, Harrington, Roger F, SYRACUSE UNIV NY DEPT OF ELECTRICAL AND COMPUTER ENGINEERING,...
Defense Technical Information Archive
May 17, 2019 Defense Technical Information Center
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The report covers the period 1 July 1971 - 30 June 1972 which is characterized by system developments and software debugging efforts and establishment of organizational procedures required for the routine NORSAR operation. The research efforts were aimed at system improvements, especially to increase the event detection capability, and array performance evaluation. Work completed and in progress is discussed in Chapter II. The first five sections deal with event detection problems, while in the...
Topics: DTIC Archive, Husebve, Eyestein S, ROYAL NORWEGIAN COUNCIL FOR SCIENTIFIC AND INDUSTRIAL RESEARCH...
Defense Technical Information Archive
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The results of a previous study of the concept of a stirred reactor laser with lasing restricted to the zeroth fundamental band are compared with the predicted power output of a multilevel laser for the hydrogen-fluorine- helium (h2-F2-He) system. Lasing is assumed to occur on all fundamental bands for which the calculated maximum gain equals the cavity threshold value. Power output is significantly increased over the zeroth band calculations, and the effect of cavity pressure is shown to be...
Topics: DTIC Archive, Osgerby, I T, ARNOLD ENGINEERING DEVELOPMENT CENTER ARNOLD AFB TN, *GAS LASERS,...
Defense Technical Information Archive
May 17, 2019 Defense Technical Information Center
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The overall objective of the project has been to acquire a better understanding of the processes of fracture in rocks, needed in engineering rock mechanics, structural geology, and seismology. The project has involved an integrated program of theoretical, experimental, and field studies designed to improve the knowledge of why, when, where, and how fracturing occurs. It 'Photomechanical modeling', and 'Fast strain-rate testing'.
Topics: DTIC Archive, Handin, John, TEXAS A AND M UNIV COLLEGE STATION CENTER FOR TECTONOPHYSICS, *ROCK,...
Defense Technical Information Archive
May 17, 2019 Defense Technical Information Center
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A set of experiments employing a mass spectrometer to study the kinetics and thermodynamics of graphite vaporization are described. Evidence for the existence of small amounts of C10, C11, C14, and C15 in the vapors over hot graphite at about 3000K is presented and discussed. Reflection of C3 vapor by graphite surfaces has been shown to occur without condensation or exchange interaction for surface temperatures in the range 1000K less than Ts ;less than 2700K. Isotopic labelling has been...
Topics: DTIC Archive, Steele, Warren C, AVCO SYSTEMS DIV WILMINGTON MA, *REENTRY VEHICLES, *GRAPHITE, HIGH...
Defense Technical Information Archive
May 17, 2019 Defense Technical Information Center
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The report describes an attempt to observe SH waves from several large underground nuclear explosions at first-zone distances (600 km) from each event. The data base was supplemented by seismograms from the World Wide Standard Station Network and Canadian Network. Good SH arrivals were observed at the shorter ranges (250 km) but not at ranges between 250 km and about 1800 km. In an effort to detect the arrival of any S waves (SV or SH) within this 'shadow zone', a flat-layered earth...
Topics: DTIC Archive, Turpening, R M, MICHIGAN UNIV ANN ARBOR INST OF SCIENCE AND TECHNOLOGY, *NUCLEAR...
Defense Technical Information Archive
May 17, 2019 Defense Technical Information Center
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The Soviet State Standard, GOST No. 5.561-70, prescribes the standards for the manufacturing, testing, marking and packaging of gas turbines. The turbines are tested on a test bed without a generator, when idling, and at nominal rotor rotation rate according to the program developed by the manufacturing enterprise and confirmed in the established order. After set-up of the turbine is completed, acceptance tests must be conducted at the client's enterprise with the assistance of representatives...
Topics: DTIC Archive, ARMY FOREIGN SCIENCE AND TECHNOLOGY CENTER CHARLOTTESVILLE VA, *GAS TURBINES, USSR,...
Defense Technical Information Archive
May 17, 2019 Defense Technical Information Center
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Experiments with an apparent pulsed x-ray laser are very briefly described including the possible observation of Bragg diffraction of x-rays by a gold foil inserted in the x-ray beam. Results of rate studies of the dimerization of several phthalocyanine dyes in solution and of proton- sulfonphthalein anion recombinations are also very briefly described along with developing plans for measuring excited state lifetimes of several photographic dye sensitizers.
Topics: DTIC Archive, Eyring, Edward M, UTAH UNIV SALT LAKE CITY DEPT OF CHEMISTRY, *REACTION KINETICS,...
A limited preliminary evaluation was made of the potential of the ferromagnetic Barkhausen effect stress measuring instrumentation for monitoring residual stresses induced in gun tubes by autofrettaging. Experiments conducted on small scale tubes verified that the instrumentation is proportionately sensitive to stress induced by autofrettaging. Measurements made on a full scale 175 mm gun tube before and after autofrettaging gave unexpected anomalous results. Further investigation will be...
Topics: DTIC Archive, Gardner, C G, SOUTHWEST RESEARCH INST SAN ANTONIO TX, *NONDESTRUCTIVE TESTING, *GUN...
Defense Technical Information Archive
May 17, 2019 Defense Technical Information Center
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The report details work conducted on a project designed to improve the sensitivity of a field test kit for detecting morphine in urine. Color reagents, extraction parameters and techniques were evaluated to improve the sensitivity to less than 1 ug/ml morphine in urine. Final evaluation of the redesigned field kit using spiked urine indicated the project was successful; however, evaluation with user murine was inconclusive due to the shortage of a supply of fresh user urine.
Topics: DTIC Archive, Woodhouse, Edward J, MIDWEST RESEARCH INST KANSAS CITY MO, *URINE, *MORPHINE,...
Defense Technical Information Archive
May 17, 2019 Defense Technical Information Center
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The report details work conducted on a project designed to evaluate a rapid presumptive field test for detection of hashish and hashish smokers. A kit consisting of lip swabs for smokers and a paper strip test for the hashish was devised and evaluated. Twenty kits, each capable of 20 smoker tests and 20 plant-material tests were assembled and dispatched to the Land Warfare Laboratory. The lip swabs were capable of detecting over 70% of persons smoking a normal amount of marijuana or hashish....
Topics: DTIC Archive, Woodhouse, Edward J, MIDWEST RESEARCH INST KANSAS CITY MO, *CANNABIS, TEST METHODS,...
Defense Technical Information Archive
May 17, 2019 Defense Technical Information Center
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The report studies the electromagnetic radar scattering parameters for a complex airborne target at high frequencies. The components of the target are modeled by simple geometrical shapes including ellipsoids, elliptical plates, ogives, and semi-individual component are derived in terms of simple analytical functions. These are subsequently combined, in a consistent manner that takes into consideration the geometrical phase delay and shadowing effect, to yield the total scattered field from the...
Topics: DTIC Archive, Mittra, R, ILLINOIS UNIV AT URBANA ANTENNA LAB, *RADAR CROSS SECTIONS, *AERIAL...
Defense Technical Information Archive
May 17, 2019 Defense Technical Information Center
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The DIAX torsional accelerometers have been repackaged for borehole use. The basic sonde system is presently designed to operate at a pressure equivalent to a depth of 3000 feet of water. It should be noted that the DIAX accelerometers provide true broadband information which extends from zero frequency to several Hertz. This enables the following phenomena to be investigated with a single system at no additional cost: High frequency seismic signals (6 to 0.1 seconds period); Low frequency...
Topics: DTIC Archive, Block, Barry, DIAX CORP LA JOLLA CA, *ACCELEROMETERS, BROADBAND, DIAGRAMS, DRIFT,...
A series of tests has been conducted at free-stream Mach numbers four and eight to determine the effectiveness of three-dimensional boundary-layer trips in promoting transition on very blunt axisymmetric bodies with near equilibrium wall temperatures. Temperature distributions obtained with temperature sensing gages inserted in the model surface were used to locate boundary-layer transition at Mach number four, and qualitative results, based on pitot pressure measurements, were obtained at Mach...
Topics: DTIC Archive, Coats, Jack D, ARNOLD ENGINEERING DEVELOPMENT CENTER ARNOLD AFB TN, *NOSE CONES,...
Defense Technical Information Archive
May 17, 2019 Defense Technical Information Center
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A complex structure such as a vehicle is represented by a lumped parameter model. Using the finite element method, a set of equations of motion is formulated for this model. Then these equations are solved numerically by the Runge - Kutta method. A model for representing a specific vehicle, namely the M-37 military truck cushioned for an airdrop is used to illustrate the procedure. Some of the physical constants for the model are modified as required to bring the computed results of...
Topics: DTIC Archive, Jan, Song Fong, TEXAS UNIV AT AUSTIN ENGINEERING MECHANICS RESEARCH LAB, *AIR DROP...
Defense Technical Information Archive
May 17, 2019 Defense Technical Information Center
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A review of several simple, inviscid, high-altitude rocket plume models indicated the most accurate representation. Wind-tunnel plume measurements have been used to verify the Jarvinen-Hill model and to study the plume viscous mixing layers which simulated flight conditions by matching wind tunnel and flight plume Knudsen numbers. The HAPRAP data simulate typical ICBM sustainer flight in the 120 to 320 km altitude range.
Topics: DTIC Archive, Draper, James S, AERODYNE RESEARCH INC BILLERICA MA, *ROCKETS, *EXHAUST FLAMES,...
Defense Technical Information Archive
May 17, 2019 Defense Technical Information Center
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The general problem of the interaction between a monatomic gas and a solid surface is investigated from a mathematical point of view by the use of a scattering kernel. This general scattering kernel must fulfill the obvious conditions of normalization and non-negativity and has recently been shown to also satisfy the condition of detailed balancing or reciprocity. It is shown that calculated parameters are related to a tangential and a normal thermal accommodation coefficient. The scattering...
Topics: DTIC Archive, Kinslow, Max, ARNOLD ENGINEERING DEVELOPMENT CENTER ARNOLD AFB TN, *SURFACES, ARGON,...
Defense Technical Information Archive
May 17, 2019 Defense Technical Information Center
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The Beta-1 and Beta-2 experimental isotopic electrical generators, used as power sources for the ARMS-N Automatic Radio Meteorological Station, were created to check out a number of theoretical premises and design features upon which they are based. The Beta-1 and Beta-2 isotopic thermoelectric generators consist of the following basic components: isotopic and thermal units, a thermopile unit, the housing, a biological safeguard, a thermodischarge system, as well as the generation and storage...
Topics: DTIC Archive, Fradkin, G M, ARMY FOREIGN SCIENCE AND TECHNOLOGY CENTER CHARLOTTESVILLE VA,...
Defense Technical Information Archive
May 17, 2019 Defense Technical Information Center
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Bird-rocket sled collisions at the rocket-sled test track at Holloman AFB, New Mexico, have resulted in severe damage to rocket sleds and ancillary equipment. The ecotonal location of the track, together with abundant water supplies created by the water braking system and an artificial rain field, is instrumental in attracting a large avifaunal population. Of the 41 species observed in the test track vicinity, house finches, horned larks, lark buntings, loggerhead shrikes, scaled quail,...
Topics: DTIC Archive, Wooten, Rutherford C, AIR FORCE WEAPONS LAB KIRTLAND AFB NM, *ROCKET SLEDS,...
Defense Technical Information Archive
May 17, 2019 Defense Technical Information Center
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The oven aging behaviour of six rubbers (nitrile, polychloroprene, PVC/nitrile, fluorocarbon, diene/EPR and natural), in the form of tensile dumb- bells has been measured and attempts have been made to relate the aging behaviour to conventional rate processes. By fitting to an emperical equation the change of elongation at break the prediction of shelf storage life at ambient temperature can be made for all the rubbers except the fluorinated rubber.
Topics: DTIC Archive, Stokoe, A L, EXPLOSIVES RESEARCH AND DEVELOPMENT ESTABLISHMENT WALTHAM ABBEY (UNITED...
Two Astrobee D payloads, developed and instrumented at the Space Science Laboratory, Utah State University, under contract with the Air Force Cambridge Research Laboratories, were flown from Poker Flat, Alaska, as part of ICECAP 72 -- a continuing auroral measurements program. The first payload (30. 205-3) contained a cooled, dual-channel radiometer which measured OH emissions in the 1.4 to 1.65 micrometer and 1.85 to 2.12 micrometer bands and was flown into a quiet nighttime sky with respect...
Topics: DTIC Archive, Jensen, Larry L, UTAH STATE UNIV LOGAN SPACE SCIENCE LAB, *AURORAE, *SOUNDING...
Defense Technical Information Archive
May 17, 2019 Defense Technical Information Center
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The report is a compilation of all abstracts dealing with Soviet high-power laser technology that were published in 1972 in the monthly series on Selected Material from Soviet Technical Literature. Topics included in the report are as follows: Laser breakdown of gas, Laser interaction with plasma, Laser interaction with metals, Laser interaction with dielectrics, Laser interaction with semiconductors, Laser interaction with liquids, Laser interaction with miscellaneous materials, Theory of...
Topics: DTIC Archive, INFORMATICS INC ROCKVILLE MD, *DAMAGE, USSR, INTERACTIONS, PLASMAS(PHYSICS), OPTICAL...
Defense Technical Information Archive
May 17, 2019 Defense Technical Information Center
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The study was initiated by a request to feed 'volunteer' military services foods that are not only nutritious but acceptable. Specifically, beverages were singled out since they constitute products of processed fruit juices and fruit-flavored beverages of which are 100 different types at the marketplace. In order to clarify and attempt to reduce costs of military procurement this report lists beverages classified according to their product types, their range in cost per 6 fluid oz. serving, and...
Topics: DTIC Archive, Harris, Norman E, ARMY NATICK LABS MA FOOD LAB, *MILITARY RATIONS, ADDITIVES,...
Defense Technical Information Archive
May 17, 2019 Defense Technical Information Center
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Automotive pneumatic tire and road surface temperatures are measured using infrared sensory non-contact techniques. A highway test vehicle implemented with on-board dual system temperature averaging and high speed circumferential profiling instrumentation package is described. Infrared techniques used for generating 'tire temperature histories' are discussed in terms of highway performance factors. The influencing effects of road surface and air temperature, air flow and solar load are shown....
Topics: DTIC Archive, Wilburn, David K, ARMY TANK-AUTOMOTIVE COMMAND WARREN MI, *TIRES, VELOCITY,...
Defense Technical Information Archive
May 17, 2019 Defense Technical Information Center
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The report includes abstracts and bibliographic lists on major contractual subjects that were completed in December, 1972. The major topics are: laser technology, effects of strong explosions, geosciences, and particle beams. Sections on material science and on items of miscellaneous interest are included as optional topics. Only laser entries concerning high-power effects are routinely included, since all current laser material appears regularly in the quarterly bibliographies. An index...
Topics: DTIC Archive, Hibben, Stuart G, INFORMATICS INC ROCKVILLE MD, *SCIENTIFIC RESEARCH, *USSR,...
The workshop involved continuous on-line interaction with a set of theory-laden program systems (production systems, natural language understanding systems, simulation, automatic protocol analysis systems and experimental systems). A guide system (ZOG) was used to mediate the use of these systems.
Topics: DTIC Archive, Newell, A, CARNEGIE-MELLON UNIV PITTSBURGH PA DEPT OF COMPUTER SCIENCE, *BEHAVIOR,...
Defense Technical Information Archive
May 17, 2019 Defense Technical Information Center
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The refractive index structure function coefficient, (C sub n) squared, is an atmospheric parameter needed to describe scintillation and small- scale phase fluctuations of electromagnetic radiation propagated in the atmospheric surface layer. Since systematic direct measurements of C sub n for many climates and seasons are not available, an indirect method is developed where C sub n is calculated from the estimates of sensible and latent heat flux components of the surface energy budgets. This...
Topics: DTIC Archive, Wesley, Marvin L, ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD,...
Defense Technical Information Archive
May 17, 2019 Defense Technical Information Center
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Several problems in estimation theory with current application interest to orbit determination are treated in the report. Although much of the material covered has general application, the important specific of interplanetary orbit determination is given special emphasis and is used throughout to provide context and to obtain numerical results. Topics covered include: modeling the errors in the navigation measurements, describing the navigation measurements compactly in terms of the unknown...
Topics: DTIC Archive, Curkendall, David W, CALIFORNIA UNIV LOS ANGELES SCHOOL OF ENGINEERING AND APPLIED...
Defense Technical Information Archive
May 17, 2019 Defense Technical Information Center
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Development of a comprehensive theory of mathematical games has been hampered by philosophical, conceptual, and practical difficulties. For dynamic games in particular, solution methods are elusive, and algorithms are rare. This is especially apparent for games which require that the competitors randomize, or mix, their tactics even though such randomization is a common property of actual competitive situations. The report is therefore concerned with the development of a technique for the...
Topics: DTIC Archive, Westphal, III, Louis C, CALIFORNIA UNIV LOS ANGELES SCHOOL OF ENGINEERING AND APPLIED...
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May 17, 2019 Defense Technical Information Center
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Ron Howard solved the Markov decision problem with perfect knowledge of all the transition probabilities and rewards. In a practical situation, the transition probabilities may not be known exactly. Therefore, the problem this research attacks is the Markov decision problem with uncertain transition probabilities. In the case of perfect knowledge, the decision that maximizes the expected reward or gain is chosen. When there is uncertainty in the transition probabilities, the gains become random...
Topics: DTIC Archive, Osgood, William R, CALIFORNIA UNIV LOS ANGELES SCHOOL OF ENGINEERING AND APPLIED...
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May 17, 2019 Defense Technical Information Center
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Topics: DTIC Archive, Berman, Irvin, AIR FORCE CAMBRIDGE RESEARCH LABS HANSCOM AFB MA, *SILICON CARBIDES,...
Defense Technical Information Archive
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Atmospheric density, especially low values thereof, is important to aircraft takeoff and landing operations. Such extremes must be considered in aircraft design and are therefore to be included in MIL-STD-210B. This document provides environmental design criteria to designers of military equipment, and requires for the most extreme area and month, values of low density that are equaled or surpassed during, 1, 5, 10, and 20 percent of the time for ground elevations up to 15,000 feet. Typical...
Topics: DTIC Archive, Cormier, Rene V, AIR FORCE CAMBRIDGE RESEARCH LABS HANSCOM AFB MA, *TROPOSPHERE,...
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May 17, 2019 Defense Technical Information Center
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Eight volunteers were exposed to 100% O2 at 258 mm. Hg for 31 days. Blood samples were taken daily, and red cell (RBC) volume distributions were determined by Coulter counter--RBC density distributions, by the method of Danon and Marikovsky. RBC volume distribution varied in a cyclic fashion but exhibited no consistent, significant changes. After 4 to 6 days in the test environment, the RBC populations showed an increase in the proportion of dense cells; and a trend of increasing senescence was...
Topics: DTIC Archive, Williams, William T, SCHOOL OF AEROSPACE MEDICINE BROOKS AFB TX, *BLOOD VOLUME,...
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May 17, 2019 Defense Technical Information Center
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A survey was made to determine the state of the art of various methods of cooling to cryogenic temperatures for potential adaptation to spaceborne systems. The study included evaluation of mechanical closed-cycle refrigerators, open-cycle expendable systems, passive radiation concepts which utilize the low temperature of the deep space environment, and thermoelectric devices. The following mechanical refrigeration cycles were evaluated: Vuilleumier, Stirling, Gifford-McMahon/Solvay, Brayton and...
Topics: DTIC Archive, Donabedian, Martin, AEROSPACE CORP EL SEGUNDO CA ENGINEERING SCIENCE OPERATIONS,...
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May 17, 2019 Defense Technical Information Center
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The United States Coast Guard has conducted an extensive operational study of a combined boat and surface effect rescue vehicle concept of operations. The study was conducted with the use of two CG 44 foot motor life boats (MLB) and two Bell SK-5 surface effect rescue vehicle (SERV). The primary objective of the study was to develop more extensive and accurate information that would enable a better assessment of the actual value of the SERV in all Coast Guard mission areas, as it compared to...
Topics: DTIC Archive, MLB/SERV UNIT SAN FRANCISCO CA, *BOATS, *SEA RESCUES, *COAST GUARD, *GROUND EFFECT...
Numerical procedures developed in a previous part of the report for applying the method of integral relations to transonic airfoil problems are extended to lifting cases. A modification enables any desired number of strips and size of integration domain to be used. Full inviscid flow equations are approximated by second-order polynomials in transverse direction in a physical plane. Numerical procedures including iterative processes are formulated for the case of high subsonic free-stream Mach...
Topics: DTIC Archive, Tai, Tsze C, DAVID W TAYLOR NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER BETHESDA MD...
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May 17, 2019 Defense Technical Information Center
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In the report account is given of the contemporary science of electric strength in liquid dielectrics. Experimental and theoretical data are presented on their breakdown. Processes connected with chlorodiphenyl are considered in a way which is useful for conditions which are encountered in application. Data are also presented on the electric strength of insulating mixtures and information on the change in the electrical and physical properties of certain insulation liquids subjected to...
Topics: DTIC Archive, Balygin, I, FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OH, *LIQUIDS, *DIELECTRICS,...
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May 17, 2019 Defense Technical Information Center
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Features of friction welding; Mechanism of formation of a welded joint in solid phase; Basic information from the friction theory; Heat liberation during friction welding; Basic parameters and recommended regimes in friction welding process; Friction welding of parts made from similar metals; Friction welding of parts made from different metals and alloys; Quality control of friction welding joints; Friction welding equipment; Industrial use of friction welding.
Topics: DTIC Archive, Vill, V I, FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OH, *PRESSURE WELDING, USSR,...
Defense Technical Information Archive
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Infrared spectra of aqueous NO2(-) and NO3(-) solutions, and of binary mixtures, were recorded using internal reflection techniques and a Fourier transform spectrometer. NO2(-) could be detected at a concentration of 0.02 M, and NO3(-) at 0.001 M. However, NO3(-) also became adsorbed on the Ge prism. After making corrections for adsorption and for overlapping of NO2(-) and NO3(-) bands, it was possible to analyze binary mixtures with concentrations as low as NO3(-) = 0.03 M and NO2(-) = 0.05 M....
Topics: DTIC Archive, Yang, R T, NEW YORK UNIV NY DEPT OF CHEMISTRY, *NITRATES, *INFRARED SPECTRA,...
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May 17, 2019 Defense Technical Information Center
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Two ferroelectric materials, single-crystal bismuth titanate and hot- pressed ceramic lead-zirconate-titanate of approximately 65:35 composition modified with lanthanum oxide (PLZT), have potential applications in non- volatile optical display and memory devices. The goal of the present program is to develop optical projection display structures (5 x 7 in.) which can function in solid-state real-time aircraft instrumentation systems. Display structures have been fabricated using both optical...
Topics: DTIC Archive, Francombe, Maurice H, WESTINGHOUSE RESEARCH LABS PITTSBURGH PA, *AIRCRAFT EQUIPMENT,...
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May 17, 2019 Defense Technical Information Center
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In vitro and in vivo studies were performed on both endotoxin and collagenase obtained from Pseudomonas aeruginosa. The collagenase was extensively purified by both chemical and chromatographic technics and was subsequently assayed for potential toxic activity. The collagenase yielded a 72 hr LD50 value in mice of 148 enzyme units (I.P.), 288 units (I.V.) and 55 units (intranasally). The subcutaneous route was not lethal although black, necrotic, ulcerating lesions were produced. Intranasal...
Topics: DTIC Archive, Berk, Richard S, WAYNE STATE UNIV DETROIT MI DEPT OF IMMUNOLOGY AND MICROBIOLOGY,...
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May 17, 2019 Defense Technical Information Center
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The report summarizes the results of a one-year investigation of advanced vertical display techniques. The purpose of the study was to appraise the relative merits of nonconventional display techniques for their potential application aboard a 1985 era naval all-weather day/night attack aircraft. The vertical display system (VDS) must present situation, command, and multisensor (radar, FLIR and TV) information to the pilot and systems requirements were defined including informative, functional...
Topics: DTIC Archive, McDade, John L, NORTHROP CORP PALOS VERDES PENINSULA CA ELECTRONICS DIV, *NAVAL...
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May 17, 2019 Defense Technical Information Center
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The primary purpose of the task was to investigate the suitability of rental charges for government-owned industrial plant equipment as a means for improving the productivity of these facilities. While the original scope was limited to industrial plant equipment, mostly machine tools, identical considerations apply to all government-owned facilities. The scope of the study was expanded accordingly. It was found that rent-across-the-board would be an effective means for improving the use and...
Topics: DTIC Archive, LOGISTICS MANAGEMENT INST BETHESDA MD, *DEPARTMENT OF DEFENSE, *CONTRACTS,...
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May 17, 2019 Defense Technical Information Center
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A study of head-up display requirements was conducted to determine aircraft and mission warning information to be included in the head-up display and how this information should best be presented to the pilot. Using the A-7E as a representative aircraft, a review was made of discrete warning, caution, and advisory information available from various aircraft and mission systems. Candidate warning messages were analyzed for pilot response in each general mission phase. Current practice in...
Topics: DTIC Archive, Sheehan, David J, UNITED TECHNOLOGIES CORP NORWALK CT NORDEN DIV, *HUMAN FACTORS...
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The report briefly summarizes research on work concerned with the preparation of oxidation films on metals under various pO2, pH2O, and temperature conditions and the characterization of these films. The thrust of the research was to seek out conditions which would lead to the formation of corrosion resistant oxide or hydroxide films. The metals considered for study was narrowed down to aluminum and iron, along with titanium, nickel and chromium. The principal method for characterization of the...
Topics: DTIC Archive, Dachille, Frank, PENNSYLVANIA STATE UNIV UNIVERSITY PARK MATERIALS RESEARCH LAB,...
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May 17, 2019 Defense Technical Information Center
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The paper describes and evaluates theorem proving and its role in artificial intelligence in non-technical terms. It discusses the general principles underlying automatic theorem proving on the computer and considers the different strategies and techniques that are used for improving performance. It is shown by examples that theorem proving plays a central role in artificial intelligence. The application of theorem proving to automatic program writing is treated in detail. A candid evaluation...
Topics: DTIC Archive, Huber, Hartmut G, NAVAL WEAPONS LAB DAHLGREN VA, *ARTIFICIAL INTELLIGENCE, COMPUTER...
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May 17, 2019 Defense Technical Information Center
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The goal of the program is to improve the strength and fracture behavior of alkali halides while retaining their low absorption for laser window use. The approach of plastically deforming single cyrstals press forging to obtain a fine grain polycrystalline body has been previously shown to increase yield stresses by an order of magnitude (to about 5000 psi). In the report, further advances in raising strengths and lowering absorption are presented.
Topics: DTIC Archive, NAVAL RESEARCH LAB WASHINGTON DC, *INFRARED LASERS, *INFRARED WINDOWS, *LASERS,...
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May 17, 2019 Defense Technical Information Center
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The basic physical processes which are associated with the passage of a body thru a density stratified environment and which result in disturbance motions which are steady in a reference frame moving with the body are systematically investigated. A comparison of the relative internal wave making efficiency of the various mechanisms is made, based on the internal wave energy production rates associated with the mechanisms as functions of the sensible parameters of the problem.
Topics: DTIC Archive, Bell, Jr, Thomas H, NAVAL RESEARCH LAB WASHINGTON DC, *WAKE, UNDERWATER VEHICLES,...
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May 17, 2019 Defense Technical Information Center
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The report describes the development of a theory of two-phase gas- liquid and liquid-gas ejectors with a cylindrical mixing chamber for the case where the vapor concentration in the mixture forming at the ejector outlet is negligibly small. The ejection equations, which give the relation backcurrent region can form near the flow core in the exit cone of a supersonic nozzle both in the case of a rotating gas flow and in the case of free swirling flow. The formation of such a region leads to a...
Topics: DTIC Archive, Vasiliev, Yu N, FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OH, *JET PUMPS, USSR,...
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May 17, 2019 Defense Technical Information Center
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Separated hydrophones in the sea show varying degrees of coherence, or waveform similarity, depending on separation, frequency, and kind of sound observed. Over the past ten years we have measured the phase coherence of different kinds of signals, noise and reverberation between vertically separated hydrophones. Such information is basic for the optimum design of arrays. This paper summarizes these measurements. When plotted against normalized separation, the coherence as measured by the...
Topics: DTIC Archive, Urick, R J, NAVAL ORDNANCE LAB WHITE OAK MD, *UNDERWATER SOUND, NETWORKS,...
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May 17, 2019 Defense Technical Information Center
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Sound speed measurements were made on 25 polymers at room temperature and on five of these polymers as a function of temperature. On 15 of the polymers, both longitudinal and shear sound speeds were measured. Using these sound speeds and measured densities, the elastic constants of the polymers were calculated.
Topics: DTIC Archive, Hartmann, Bruce, NAVAL ORDNANCE LAB WHITE OAK MD, *POLYMERS, TEMPERATURE, ELASTIC...
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May 17, 2019 Defense Technical Information Center
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d erbium doped materials. One phase of the program is to optimize the laser rod configuration. The effect on laser threshold and efficiency of laser rod length, diameter, and total Er(3+)-ion content is reported. Consideration was given to the Double-U laser rod which should provide more efficient coupling; results are discussed. The second phase of the program is to develop high purity phosphate core and cladding glasses which combine the higher oscillator strength of the phosphate glasses...
Topics: DTIC Archive, Woodcock, Richard F, AMERICAN OPTICAL CORP SOUTHBRIDGE MA RESEARCH DIV, *LASERS,...
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May 17, 2019 Defense Technical Information Center
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The goal under this contract is to develop erbium doped laser glasses whose performance characteristics exceed those of previously developed erbium doped materials. One approach is to optimize the laser rod configuration. The effect of laser rod length on laser threshold and efficiency is reported. Consideration was given to the Double-U laser rod which should provide more efficient coupling; preliminary results are discussed. A second approach is to develop high purity phosphated core and...
Topics: DTIC Archive, Woodcock, Richard F, AMERICAN OPTICAL CORP SOUTHBRIDGE MA RESEARCH DIV, *LASERS,...
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May 17, 2019 Defense Technical Information Center
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The annual report of the weather-modification activities of the Air Weather Service covers the projects, their operation and results, undertaken during FY 1972. Its primary purpose is to inform AWS field personnel of the progress in weather modification made during the year. Details of the projects are only briefly discussed as such details are published elsewhere, if warranted. COLD FLAKE, COLD WAND, COLD CLEAR, COOL VIEW, and the Elmendorf ground-based propane system are the activities...
Topics: DTIC Archive, Appleman, Herbert S, AIR WEATHER SERVICE SCOTT AFB IL, *FOG, SCATTERING, ALASKA,...
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May 17, 2019 Defense Technical Information Center
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The report describes a method for evaluation of wet weather clothing operational and functional performance characteristics. Identifies supporting tests, facilities, and equipment required. Provides procedures for preoperational inspection, physical characteristics, safety, personnel training, functional suitability, durability, reliability, maintainability, human factors, and value analysis.
Topics: DTIC Archive, Rush, Ray, ARMY INFANTRY BOARD FORT BENNING GA, *PROTECTIVE CLOTHING, MILITARY...
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May 17, 2019 Defense Technical Information Center
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The report describes a method for evaluation of direct fire sights operational and functional performance characteristics. It identifies supporting tests, facilities, and equipment required. It provides procedures for personnel training and selection, known distance firing, tactical observation, and tactical field firing.
Topics: DTIC Archive, Lavendar, Paul, ARMY TEST AND EVALUATION COMMAND ABERDEEN PROVING GROUND MD, *GUN...